An increase in equivalent conductance of a strong electrolyte with dilution is mainly due to

1. increase in ionic mobility of ions

2. 100% ionisation of electrolyte at normal dilution

3. increase in both, i.e. number of ions and ionic mobility of ions

4. increase in number of ions

Subtopic:   Kohlrausch Law & Cell Constant |
 55%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

For the cell, Ti|Ti+(0.001M)||Cu2+(0.1M)|Cu,Ecell at 25°C is 0.83 V. Ecell can be increased:

1. By increasing [Cu2+]

2. By increasing [Ti+]

3. By decreasing [Cu2+]

4. None of these

Subtopic:  Nernst Equation |
 69%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The atomic mass of Al is 27. When a current of 5 faraday is passed through a solution of Al3+ ions, the mass of Al deposited is:

1. 27 g

2. 36 g

3. 45 g

4. 9 g

Subtopic:  Faraday’s Law of Electrolysis |
 86%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Cu+(aq) is unstable in solution and undergoes simultaneous oxidation and reduction according to the reaction 

2Cu+(aq) Cu2+(aq) + Cu(s)

Choose the correct E0 for above reaction if E0cu2+/cu = 0.34 V and E0cu2+/cu+ = 0.15 V 

1. -0.38 V

2. +4.9 V

3. +0.38 V

4. -0.19 V

Subtopic:  Relation between Emf, G, Kc & pH |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

On the basis of the information available from the reaction.

43Al + O2           23Al2O3, G =-827kJ mol-1 

of O2, the minimum EMF required to carry out the electrolysis of Al2O3 is : (F=96500 C mol-1

1. 2.14 V

2. 4.28 V

3. 6.42 V

4. 8.56 V

Subtopic:  Faraday’s Law of Electrolysis |
 62%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

4.5 g of aluminium (atomic mass 27u) is deposited at cathode from Al3+ solution by a certain quantity of electric charge. The volume of hydrogen produced at STP from H+ ions in solution by the same quantity of electric charge will be

1. 44.8 L

2. 22.4 L

3. 11.2 L

4. 5.6 L

Subtopic:  Faraday’s Law of Electrolysis |
 59%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

A certain current liberates 0.504 g of hydrogen in 2 hr. How many gram of copper can be liberated by the same current flowing for the same time in CuSO4 solution?

1. 12.7

2. 16

3. 31.8

4. 63.5

Subtopic:  Faraday’s Law of Electrolysis |
 67%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

For the reductidon of silver ions with copper metal, the standard  cell potential was found to be + 0.46 V at 250C. The value of standard Gibbs energy(G0) will be ;
(F = 96500 Cmol-1)

1. -89.0 KJ

2. -89.0 J

3. -44.5 KJ

4. -98.0 KJ

Subtopic:  Relation between Emf, G, Kc & pH |
 70%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

A solution of sodium sulphate in water is electrolysed using inert electrodes. The products at the cathode and anode are respectively:

1. H2, O2

2. O2, H2

3. O2, Na

4. O2, SO2

Subtopic:  Electrolytic & Electrochemical Cell |
 75%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

If a salt bridge is removed from the two half cells, the voltage:

1. Drops to zero.

2. Does not change.

3. Increases gradually.

4. Increases rapidly.

Subtopic:  Batteries & Salt Bridge |
 76%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh